Author Question: The rotation curve of the outer portions of the Galaxy revealed what about its mass? What will be ... (Read 33 times)

tiara099

  • Hero Member
  • *****
  • Posts: 588
The rotation curve of the outer portions of the Galaxy revealed what about its mass?
 
  What will be an ideal response?

Question 2

Essentially, the Great Red Spot is
 
  A) traveling north and south across Jupiter's face.
  B) composed primarily of iron oxide.
  C) a large cyclonic storm (hurricane).
  D) always located within 10 degrees of Jupiter's north pole.
  E) Neptune's largest atmospheric feature.



fur

  • Sr. Member
  • ****
  • Posts: 309
Answer to Question 1

The outer portions were moving faster than Keplerian motion, so the mass distribution is not like our centrally-focused solar system, but most of the mass lies farther out in vast amounts of dark matter.

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

For a complete list of videos, visit our video library